/**
 * Software License, Version 1.0
 *
 * Copyright 2003 The Trustees of Indiana University.  All rights reserved.
 *
 *
 *Redistribution and use in source and binary forms, with or without
 *modification, are permitted provided that the following conditions are met:
 *
 *1) All redistributions of source code must retain the above copyright notice,
 * the list of authors in the original source code, this list of conditions and
 * the disclaimer listed in this license;
 *2) All redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the disclaimer listed in this license in
 * the documentation and/or other materials provided with the distribution;
 *3) Any documentation included with all redistributions must include the
 * following acknowledgement:
 *
 *"This product includes software developed by the Community Grids Lab. For
 * further information contact the Community Grids Lab at
 * http://communitygrids.iu.edu/."
 *
 * Alternatively, this acknowledgement may appear in the software itself, and
 * wherever such third-party acknowledgments normally appear.
 *
 *4) The name Indiana University or Community Grids Lab or NaradaBrokering,
 * shall not be used to endorse or promote products derived from this software
 * without prior written permission from Indiana University.  For written
 * permission, please contact the Advanced Research and Technology Institute
 * ("ARTI") at 351 West 10th Street, Indianapolis, Indiana 46202.
 *5) Products derived from this software may not be called NaradaBrokering,
 * nor may Indiana University or Community Grids Lab or NaradaBrokering appear
 * in their name, without prior written permission of ARTI.
 *
 *
 * Indiana University provides no reassurances that the source code provided
 * does not infringe the patent or any other intellectual property rights of
 * any other entity.  Indiana University disclaims any liability to any
 * recipient for claims brought by any other entity based on infringement of
 * intellectual property rights or otherwise.
 *
 *LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH NO
 *WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA UNIVERSITY GIVES
 *NO WARRANTIES AND MAKES NO REPRESENTATION THAT SOFTWARE IS FREE OF
 *INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR OTHER PROPRIETARY RIGHTS.
 *INDIANA UNIVERSITY MAKES NO WARRANTIES THAT SOFTWARE IS FREE FROM "BUGS",
 *"VIRUSES", "TROJAN HORSES", "TRAP DOORS", "WORMS", OR OTHER HARMFUL CODE.
 *LICENSEE ASSUMES THE ENTIRE RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR
 *ASSOCIATED MATERIALS, AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION
 *GENERATED USING SOFTWARE.
 */
package cgl.narada.service.timer;

//import java.util.Date;
/**
 * HRClock wrapps Windows and Unix implementations and returns the client either
 * windows or unix implementation of the clock.
 *
 * @author Hasan Bulut  - hbulut@indiana.edu
 * Community Grids Lab., Indiana University
 * @version 1.0
 */
public class HRClock extends ClockI {
    //~ Instance fields ----------------------------------------------------------

    private static ClockI instance = new HRClock();
    private String OSName = ""; // Linux, Windows, Solaris
    private String OSArch = "i386"; // Linux, Windows, Solaris
    private ClockI hrclock = null;

    //~ Constructors -------------------------------------------------------------
    /**
     * Generates a new HRClock object.
     */
    private HRClock() {


        OSName = System.getProperty("os.name");
        // System.out.println("os name:" + OSName);
        if (OSName.toLowerCase().indexOf("windows") >= 0) {
            //   System.out.println("OSName:" + OSName);
            hrclock = WindowsClock.getClock();
        } else if ((OSName.toLowerCase().indexOf("linux") >= 0) ||
                (OSName.toLowerCase().indexOf("sunos")) >= 0) {
            //   System.out.println("Unix clock, OSName:" + OSName);
            hrclock = UnixClock.getClock();
        }
    }

    //~ Methods ------------------------------------------------------------------
    public void initializeClock() {
        hrclock.initializeClock();
    }

    /**
     * Returns clock implementation for the underlying operating system.
     * @return ClockI - interface that has been implemented.
     */
    public static ClockI getClock() {
        return instance;
    }

    /**
     * Returns time in microseconds
     * @return long - local time as microseconds
     */
    public long getTimeMicroseconds() {
        return hrclock.getTimeMicroseconds();
    }

    /**
     * Returns time in milliseconds
     * @return long - local time as milliseconds
     */
    public long getTimeMilliseconds() {
        return hrclock.getTimeMilliseconds();
    }

    /**
     * Causes thread to sleep for the specified amount in milliseconds.
     * @param sleepVal - sleep time in milliseconds
     */
    public void sleep(int sleepVal) {
        hrclock.sleep(sleepVal);
    }
    /**
     * Simple test program.
     * @param args - input arguments, no arguments used.
    /
    public static void main(String[] args) {
    /*
    HRClock hr      = new HRClock();
    ClockI  hrclock = hr.getClock();
    long    tmsec   = 0;
    long    tusec   = 0;
    int len = 10000;
    long [] arr = new long[len];

    //tmsec = hrclock.getTimeMilliseconds();
    for (int i=0; i<len; i++) {
    tusec = hrclock.getTimeMicroseconds();
    arr[i] = tusec;
    hrclock.sleep(2000);
    }
    //    for (int i=0; i<len; i++) {
    //     System.out.println(arr[i]);
    // }
    ///
    //*
    int slpTime = 2000;
    if(args.length == 1) {
    slpTime = Integer.parseInt(args[0]);
    }
    System.out.println("slpTime:"+slpTime);

    ClockI  hrclock = HRClock.getClock("C:/eclipse/workspace/Analisador/ext/windows/");
    long    tmsec   = 0;
    long    tusec   = 0;
    tmsec = hrclock.getTimeMilliseconds();
    //tmsec = hrclock.getTimeMicroseconds();
    hrclock.sleep(slpTime);
    tusec = hrclock.getTimeMicroseconds();
    System.out.println("msec: " + tmsec+"Data: "+new Date(tmsec));
    System.out.println("usec: " + tusec+"Data: "+new Date(tusec/1000));
    //
    }*/
}
